【100% Blackout】：LEIYER 100% blackout window cover is engineered with triple-layer blackout material to completely block sunlight and UV rays. Made of polyester with silver-coated backing, the portable blackout curtains reflects 99% of heat radiation 【No Drill Design】：No tools, no holes, no limits. Velcro blackout curtains gives you no-drill freedom for any wall, any window, anywhere. The acrylic adhesive provides strong grip on glass, wood, and plastic surfaces, leaving no residue when removed 【Versatile Customization】：Our black out window cover come in 440 standard sizes and can be easily trimmed to fit unique window shapes，including RV skylights, arched windows, and polygonal designs. For optimal shading performance, we recommend selecting a size slightly larger than your window's actual measurements 【Safe Materials】：Non-toxic and Formaldehyde-free materials tested by SGS ensure zero chemical residue, creating safer blackout window shade for those who need them 【Customer Assurance】：Every blackout blinds undergoes rigorous 12-point quality inspections, including light blockage and adhesive durability tests Size 59 W x 84 L (Pack of 1) Color Black Opacity Blackout Inches Room Type Bedroom, DormRoom, Home Cinema, Living Room, Office Brand Name LEIYER Item Weight 8.8 ounces Manufacturer LEIYER Material Type Polyester Additional Features Blackout, Cordless, Window Treatments Item Dimensions L x W 84 L x 59 W Recommended Uses For Product Indoor